/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Delay.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-customized08.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-87fd7473a0bda1db0ad7f77f2116346063730f21-87fd747 [2021-08-21 19:01:45,808 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-21 19:01:45,825 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-21 19:01:45,859 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-21 19:01:45,859 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-21 19:01:45,861 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-21 19:01:45,863 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-21 19:01:45,867 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-21 19:01:45,869 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-21 19:01:45,872 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-21 19:01:45,872 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-21 19:01:45,873 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2021-08-21 19:01:45,905 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-21 19:01:45,906 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-21 19:01:45,906 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-21 19:01:45,907 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Delay.epf [2021-08-21 19:01:45,935 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-21 19:01:45,936 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-21 19:01:45,938 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-21 19:01:45,939 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-21 19:01:45,939 INFO L138 SettingsManager]: * Use SBE=true [2021-08-21 19:01:45,939 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-21 19:01:45,939 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-21 19:01:45,939 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-21 19:01:45,939 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-21 19:01:45,939 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-21 19:01:45,940 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-21 19:01:45,940 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-21 19:01:45,940 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-21 19:01:45,940 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-21 19:01:45,940 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-21 19:01:45,941 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-21 19:01:45,941 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-21 19:01:45,941 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-21 19:01:45,941 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-21 19:01:45,941 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-08-21 19:01:45,941 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-21 19:01:45,941 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-21 19:01:45,941 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-21 19:01:45,942 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-21 19:01:45,942 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-21 19:01:45,942 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-21 19:01:45,942 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-21 19:01:45,942 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-08-21 19:01:45,942 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-21 19:01:45,942 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-08-21 19:01:45,942 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-08-21 19:01:46,204 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-21 19:01:46,221 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-21 19:01:46,222 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-21 19:01:46,223 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-08-21 19:01:46,224 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-08-21 19:01:46,225 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-customized08.bpl [2021-08-21 19:01:46,225 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-customized08.bpl' [2021-08-21 19:01:46,249 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-21 19:01:46,250 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-08-21 19:01:46,252 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-21 19:01:46,253 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-21 19:01:46,253 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-21 19:01:46,264 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "bluetooth-customized08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 07:01:46" (1/1) ... [2021-08-21 19:01:46,269 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "bluetooth-customized08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 07:01:46" (1/1) ... [2021-08-21 19:01:46,280 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-21 19:01:46,282 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-21 19:01:46,282 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-21 19:01:46,282 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-21 19:01:46,287 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "bluetooth-customized08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 07:01:46" (1/1) ... [2021-08-21 19:01:46,288 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "bluetooth-customized08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 07:01:46" (1/1) ... [2021-08-21 19:01:46,288 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "bluetooth-customized08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 07:01:46" (1/1) ... [2021-08-21 19:01:46,289 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "bluetooth-customized08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 07:01:46" (1/1) ... [2021-08-21 19:01:46,291 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "bluetooth-customized08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 07:01:46" (1/1) ... [2021-08-21 19:01:46,292 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "bluetooth-customized08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 07:01:46" (1/1) ... [2021-08-21 19:01:46,293 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "bluetooth-customized08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 07:01:46" (1/1) ... [2021-08-21 19:01:46,294 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-21 19:01:46,294 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-21 19:01:46,294 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-21 19:01:46,294 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-21 19:01:46,295 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "bluetooth-customized08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 07:01:46" (1/1) ... [2021-08-21 19:01:46,300 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-21 19:01:46,307 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-21 19:01:46,319 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-08-21 19:01:46,343 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-08-21 19:01:46,358 INFO L124 BoogieDeclarations]: Specification and implementation of procedure DeviceThreadWithAssert given in one single declaration [2021-08-21 19:01:46,359 INFO L130 BoogieDeclarations]: Found specification of procedure DeviceThreadWithAssert [2021-08-21 19:01:46,359 INFO L138 BoogieDeclarations]: Found implementation of procedure DeviceThreadWithAssert [2021-08-21 19:01:46,359 INFO L124 BoogieDeclarations]: Specification and implementation of procedure DeviceThread given in one single declaration [2021-08-21 19:01:46,359 INFO L130 BoogieDeclarations]: Found specification of procedure DeviceThread [2021-08-21 19:01:46,359 INFO L138 BoogieDeclarations]: Found implementation of procedure DeviceThread [2021-08-21 19:01:46,359 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ServerThread given in one single declaration [2021-08-21 19:01:46,359 INFO L130 BoogieDeclarations]: Found specification of procedure ServerThread [2021-08-21 19:01:46,359 INFO L138 BoogieDeclarations]: Found implementation of procedure ServerThread [2021-08-21 19:01:46,360 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-08-21 19:01:46,360 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-21 19:01:46,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-21 19:01:46,360 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-08-21 19:01:46,517 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-21 19:01:46,517 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2021-08-21 19:01:46,525 WARN L329 CfgBuilder]: Unexpected successor node of atomic block begin: DeviceThreadWithAssertEXIT is neither atomic block end nor error location. [2021-08-21 19:01:46,526 WARN L329 CfgBuilder]: Unexpected successor node of atomic block begin: DeviceThreadEXIT is neither atomic block end nor error location. [2021-08-21 19:01:46,527 INFO L202 PluginConnector]: Adding new model bluetooth-customized08.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 07:01:46 BoogieIcfgContainer [2021-08-21 19:01:46,527 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-21 19:01:46,528 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-21 19:01:46,528 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-21 19:01:46,530 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-21 19:01:46,530 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth-customized08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 07:01:46" (1/2) ... [2021-08-21 19:01:46,531 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a196473 and model type bluetooth-customized08.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 07:01:46, skipping insertion in model container [2021-08-21 19:01:46,531 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth-customized08.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 07:01:46" (2/2) ... [2021-08-21 19:01:46,532 INFO L111 eAbstractionObserver]: Analyzing ICFG bluetooth-customized08.bpl [2021-08-21 19:01:46,535 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-08-21 19:01:46,536 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-21 19:01:46,536 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-21 19:01:46,536 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-08-21 19:01:46,586 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-08-21 19:01:46,615 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-21 19:01:46,620 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-08-21 19:01:46,626 INFO L340 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2021-08-21 19:01:58,307 INFO L276 IsEmpty]: Start isEmpty. Operand has 137777 states, 114815 states have (on average 3.4841266385054217) internal successors, (400030), 137776 states have internal predecessors, (400030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 19:01:58,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-08-21 19:01:58,348 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 19:01:58,348 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 19:01:58,349 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2021-08-21 19:01:58,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 19:01:58,356 INFO L82 PathProgramCache]: Analyzing trace with hash 849264444, now seen corresponding path program 1 times [2021-08-21 19:01:58,362 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 19:01:58,363 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396266693] [2021-08-21 19:01:58,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 19:01:58,364 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 19:01:58,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 19:01:58,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 19:01:58,503 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 19:01:58,503 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396266693] [2021-08-21 19:01:58,504 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1396266693] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 19:01:58,504 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 19:01:58,504 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-21 19:01:58,505 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258485331] [2021-08-21 19:01:58,507 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-21 19:01:58,508 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 19:01:58,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-21 19:01:58,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-21 19:01:58,766 INFO L87 Difference]: Start difference. First operand has 137777 states, 114815 states have (on average 3.4841266385054217) internal successors, (400030), 137776 states have internal predecessors, (400030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 19:02:02,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 19:02:02,667 INFO L93 Difference]: Finished difference Result 330163 states and 957083 transitions. [2021-08-21 19:02:02,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-21 19:02:02,671 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-08-21 19:02:02,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 19:02:04,597 INFO L225 Difference]: With dead ends: 330163 [2021-08-21 19:02:04,598 INFO L226 Difference]: Without dead ends: 173681 [2021-08-21 19:02:04,599 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.3ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-21 19:02:05,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173681 states. [2021-08-21 19:02:12,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173681 to 151249. [2021-08-21 19:02:13,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151249 states, 145782 states have (on average 5.1328216103497) internal successors, (748273), 151248 states have internal predecessors, (748273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 19:02:15,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151249 states to 151249 states and 748273 transitions. [2021-08-21 19:02:15,221 INFO L78 Accepts]: Start accepts. Automaton has 151249 states and 748273 transitions. Word has length 8 [2021-08-21 19:02:15,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 19:02:15,222 INFO L470 AbstractCegarLoop]: Abstraction has 151249 states and 748273 transitions. [2021-08-21 19:02:15,222 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 19:02:15,222 INFO L276 IsEmpty]: Start isEmpty. Operand 151249 states and 748273 transitions. [2021-08-21 19:02:15,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-08-21 19:02:15,232 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 19:02:15,232 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 19:02:15,232 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-21 19:02:15,244 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2021-08-21 19:02:15,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 19:02:15,245 INFO L82 PathProgramCache]: Analyzing trace with hash 100116317, now seen corresponding path program 1 times [2021-08-21 19:02:15,245 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 19:02:15,245 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060773059] [2021-08-21 19:02:15,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 19:02:15,245 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 19:02:15,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 19:02:15,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 19:02:15,278 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 19:02:15,278 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060773059] [2021-08-21 19:02:15,278 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1060773059] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 19:02:15,278 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 19:02:15,278 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-21 19:02:15,278 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271367946] [2021-08-21 19:02:15,279 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-21 19:02:15,279 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 19:02:15,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-21 19:02:15,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-21 19:02:15,280 INFO L87 Difference]: Start difference. First operand 151249 states and 748273 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 19:02:17,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 19:02:17,219 INFO L93 Difference]: Finished difference Result 135993 states and 540216 transitions. [2021-08-21 19:02:17,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-21 19:02:17,220 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-08-21 19:02:17,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 19:02:17,929 INFO L225 Difference]: With dead ends: 135993 [2021-08-21 19:02:17,930 INFO L226 Difference]: Without dead ends: 88871 [2021-08-21 19:02:17,930 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-21 19:02:18,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88871 states. [2021-08-21 19:02:20,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88871 to 87562. [2021-08-21 19:02:20,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87562 states, 82096 states have (on average 4.464675501851491) internal successors, (366532), 87561 states have internal predecessors, (366532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 19:02:21,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87562 states to 87562 states and 366532 transitions. [2021-08-21 19:02:21,695 INFO L78 Accepts]: Start accepts. Automaton has 87562 states and 366532 transitions. Word has length 10 [2021-08-21 19:02:21,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 19:02:21,695 INFO L470 AbstractCegarLoop]: Abstraction has 87562 states and 366532 transitions. [2021-08-21 19:02:21,695 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 19:02:21,696 INFO L276 IsEmpty]: Start isEmpty. Operand 87562 states and 366532 transitions. [2021-08-21 19:02:21,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-08-21 19:02:21,697 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 19:02:21,697 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 19:02:21,697 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-21 19:02:21,697 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2021-08-21 19:02:21,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 19:02:21,698 INFO L82 PathProgramCache]: Analyzing trace with hash 1421989537, now seen corresponding path program 1 times [2021-08-21 19:02:21,698 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 19:02:21,698 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838344423] [2021-08-21 19:02:21,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 19:02:21,699 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 19:02:21,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 19:02:21,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 19:02:21,731 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 19:02:21,731 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838344423] [2021-08-21 19:02:21,732 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1838344423] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 19:02:21,732 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 19:02:21,732 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-21 19:02:21,732 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935698347] [2021-08-21 19:02:21,732 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-21 19:02:21,732 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 19:02:21,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-21 19:02:21,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-08-21 19:02:21,733 INFO L87 Difference]: Start difference. First operand 87562 states and 366532 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 19:02:24,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 19:02:24,018 INFO L93 Difference]: Finished difference Result 179123 states and 822852 transitions. [2021-08-21 19:02:24,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-21 19:02:24,018 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-08-21 19:02:24,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 19:02:25,680 INFO L225 Difference]: With dead ends: 179123 [2021-08-21 19:02:25,680 INFO L226 Difference]: Without dead ends: 172190 [2021-08-21 19:02:25,681 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.9ms TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-08-21 19:02:26,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172190 states. [2021-08-21 19:02:30,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172190 to 107073. [2021-08-21 19:02:30,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107073 states, 101610 states have (on average 4.558153725027064) internal successors, (463154), 107072 states have internal predecessors, (463154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 19:02:31,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107073 states to 107073 states and 463154 transitions. [2021-08-21 19:02:31,891 INFO L78 Accepts]: Start accepts. Automaton has 107073 states and 463154 transitions. Word has length 13 [2021-08-21 19:02:31,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 19:02:31,892 INFO L470 AbstractCegarLoop]: Abstraction has 107073 states and 463154 transitions. [2021-08-21 19:02:31,892 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 19:02:31,892 INFO L276 IsEmpty]: Start isEmpty. Operand 107073 states and 463154 transitions. [2021-08-21 19:02:31,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-08-21 19:02:31,899 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 19:02:31,900 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 19:02:31,900 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-21 19:02:31,900 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2021-08-21 19:02:31,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 19:02:31,900 INFO L82 PathProgramCache]: Analyzing trace with hash -157713293, now seen corresponding path program 1 times [2021-08-21 19:02:31,900 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 19:02:31,901 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2127861835] [2021-08-21 19:02:31,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 19:02:31,901 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 19:02:31,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 19:02:31,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 19:02:31,945 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 19:02:31,946 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2127861835] [2021-08-21 19:02:31,946 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2127861835] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 19:02:31,946 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 19:02:31,946 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-21 19:02:31,947 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244796322] [2021-08-21 19:02:31,947 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-21 19:02:31,947 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 19:02:31,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-21 19:02:31,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-08-21 19:02:31,948 INFO L87 Difference]: Start difference. First operand 107073 states and 463154 transitions. Second operand has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 19:02:36,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 19:02:36,074 INFO L93 Difference]: Finished difference Result 247158 states and 1179346 transitions. [2021-08-21 19:02:36,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-21 19:02:36,083 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-08-21 19:02:36,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 19:02:38,818 INFO L225 Difference]: With dead ends: 247158 [2021-08-21 19:02:38,819 INFO L226 Difference]: Without dead ends: 227271 [2021-08-21 19:02:38,819 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.8ms TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-08-21 19:02:39,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227271 states. [2021-08-21 19:02:45,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227271 to 119236. [2021-08-21 19:02:45,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119236 states, 113782 states have (on average 4.649408518043276) internal successors, (529019), 119235 states have internal predecessors, (529019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 19:02:46,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119236 states to 119236 states and 529019 transitions. [2021-08-21 19:02:46,771 INFO L78 Accepts]: Start accepts. Automaton has 119236 states and 529019 transitions. Word has length 16 [2021-08-21 19:02:46,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 19:02:46,771 INFO L470 AbstractCegarLoop]: Abstraction has 119236 states and 529019 transitions. [2021-08-21 19:02:46,772 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 19:02:46,772 INFO L276 IsEmpty]: Start isEmpty. Operand 119236 states and 529019 transitions. [2021-08-21 19:02:46,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-08-21 19:02:46,799 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 19:02:46,799 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 19:02:46,799 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-21 19:02:46,799 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2021-08-21 19:02:46,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 19:02:46,800 INFO L82 PathProgramCache]: Analyzing trace with hash 736140129, now seen corresponding path program 1 times [2021-08-21 19:02:46,800 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 19:02:46,800 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566634997] [2021-08-21 19:02:46,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 19:02:46,800 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 19:02:46,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 19:02:46,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 19:02:46,863 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 19:02:46,863 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566634997] [2021-08-21 19:02:46,863 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566634997] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 19:02:46,863 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 19:02:46,863 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-21 19:02:46,864 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251948267] [2021-08-21 19:02:46,864 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-21 19:02:46,864 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 19:02:46,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-21 19:02:46,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-08-21 19:02:46,865 INFO L87 Difference]: Start difference. First operand 119236 states and 529019 transitions. Second operand has 7 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 19:02:50,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 19:02:50,891 INFO L93 Difference]: Finished difference Result 291049 states and 1420649 transitions. [2021-08-21 19:02:50,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-21 19:02:50,892 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-08-21 19:02:50,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 19:02:53,829 INFO L225 Difference]: With dead ends: 291049 [2021-08-21 19:02:53,830 INFO L226 Difference]: Without dead ends: 254640 [2021-08-21 19:02:53,830 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.8ms TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-08-21 19:02:54,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254640 states. [2021-08-21 19:03:00,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254640 to 123815. [2021-08-21 19:03:00,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123815 states, 118388 states have (on average 4.715106260769673) internal successors, (558212), 123814 states have internal predecessors, (558212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 19:03:02,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123815 states to 123815 states and 558212 transitions. [2021-08-21 19:03:02,088 INFO L78 Accepts]: Start accepts. Automaton has 123815 states and 558212 transitions. Word has length 19 [2021-08-21 19:03:02,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 19:03:02,089 INFO L470 AbstractCegarLoop]: Abstraction has 123815 states and 558212 transitions. [2021-08-21 19:03:02,090 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 19:03:02,090 INFO L276 IsEmpty]: Start isEmpty. Operand 123815 states and 558212 transitions. [2021-08-21 19:03:02,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-08-21 19:03:02,204 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 19:03:02,205 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 19:03:02,205 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-08-21 19:03:02,205 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2021-08-21 19:03:02,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 19:03:02,206 INFO L82 PathProgramCache]: Analyzing trace with hash -1943700571, now seen corresponding path program 1 times [2021-08-21 19:03:02,206 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 19:03:02,206 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806823964] [2021-08-21 19:03:02,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 19:03:02,207 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 19:03:02,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 19:03:02,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 19:03:02,354 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 19:03:02,354 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806823964] [2021-08-21 19:03:02,354 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [806823964] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 19:03:02,354 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 19:03:02,354 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-21 19:03:02,354 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571506822] [2021-08-21 19:03:02,355 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-21 19:03:02,355 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 19:03:02,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-21 19:03:02,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2021-08-21 19:03:02,355 INFO L87 Difference]: Start difference. First operand 123815 states and 558212 transitions. Second operand has 8 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 19:03:07,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 19:03:07,736 INFO L93 Difference]: Finished difference Result 300760 states and 1480432 transitions. [2021-08-21 19:03:07,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-21 19:03:07,737 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2021-08-21 19:03:07,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 19:03:11,373 INFO L225 Difference]: With dead ends: 300760 [2021-08-21 19:03:11,373 INFO L226 Difference]: Without dead ends: 246727 [2021-08-21 19:03:11,373 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 21.2ms TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2021-08-21 19:03:12,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246727 states. [2021-08-21 19:03:18,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246727 to 121938. [2021-08-21 19:03:18,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121938 states, 116592 states have (on average 4.738069507341842) internal successors, (552421), 121937 states have internal predecessors, (552421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 19:03:19,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121938 states to 121938 states and 552421 transitions. [2021-08-21 19:03:19,944 INFO L78 Accepts]: Start accepts. Automaton has 121938 states and 552421 transitions. Word has length 22 [2021-08-21 19:03:19,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 19:03:19,945 INFO L470 AbstractCegarLoop]: Abstraction has 121938 states and 552421 transitions. [2021-08-21 19:03:19,945 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 19:03:19,945 INFO L276 IsEmpty]: Start isEmpty. Operand 121938 states and 552421 transitions. [2021-08-21 19:03:20,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-08-21 19:03:20,415 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 19:03:20,415 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 19:03:20,415 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-08-21 19:03:20,415 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2021-08-21 19:03:20,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 19:03:20,416 INFO L82 PathProgramCache]: Analyzing trace with hash 1769285149, now seen corresponding path program 1 times [2021-08-21 19:03:20,416 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 19:03:20,416 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75751178] [2021-08-21 19:03:20,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 19:03:20,416 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 19:03:20,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 19:03:20,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 19:03:20,490 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 19:03:20,490 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75751178] [2021-08-21 19:03:20,490 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [75751178] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 19:03:20,490 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 19:03:20,490 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-21 19:03:20,490 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346151277] [2021-08-21 19:03:20,490 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-08-21 19:03:20,490 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 19:03:20,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-08-21 19:03:20,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2021-08-21 19:03:20,491 INFO L87 Difference]: Start difference. First operand 121938 states and 552421 transitions. Second operand has 9 states, 8 states have (on average 3.125) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 19:03:25,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 19:03:25,625 INFO L93 Difference]: Finished difference Result 276693 states and 1356024 transitions. [2021-08-21 19:03:25,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-21 19:03:25,625 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.125) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2021-08-21 19:03:25,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 19:03:27,749 INFO L225 Difference]: With dead ends: 276693 [2021-08-21 19:03:27,749 INFO L226 Difference]: Without dead ends: 206296 [2021-08-21 19:03:27,749 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 25.5ms TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2021-08-21 19:03:28,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206296 states. [2021-08-21 19:03:33,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206296 to 114439. [2021-08-21 19:03:33,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114439 states, 109336 states have (on average 4.734661959464403) internal successors, (517669), 114438 states have internal predecessors, (517669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 19:03:34,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114439 states to 114439 states and 517669 transitions. [2021-08-21 19:03:34,966 INFO L78 Accepts]: Start accepts. Automaton has 114439 states and 517669 transitions. Word has length 25 [2021-08-21 19:03:34,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 19:03:34,967 INFO L470 AbstractCegarLoop]: Abstraction has 114439 states and 517669 transitions. [2021-08-21 19:03:34,967 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.125) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 19:03:34,967 INFO L276 IsEmpty]: Start isEmpty. Operand 114439 states and 517669 transitions. [2021-08-21 19:03:35,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-08-21 19:03:35,416 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 19:03:35,416 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 19:03:35,416 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-08-21 19:03:35,416 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2021-08-21 19:03:35,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 19:03:35,417 INFO L82 PathProgramCache]: Analyzing trace with hash -724990359, now seen corresponding path program 1 times [2021-08-21 19:03:35,417 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 19:03:35,417 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644097693] [2021-08-21 19:03:35,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 19:03:35,417 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 19:03:35,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 19:03:35,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 19:03:35,513 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 19:03:35,513 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644097693] [2021-08-21 19:03:35,513 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [644097693] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 19:03:35,514 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 19:03:35,514 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-21 19:03:35,514 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216519674] [2021-08-21 19:03:35,514 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-08-21 19:03:35,514 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 19:03:35,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-08-21 19:03:35,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2021-08-21 19:03:35,515 INFO L87 Difference]: Start difference. First operand 114439 states and 517669 transitions. Second operand has 10 states, 9 states have (on average 3.111111111111111) internal successors, (28), 9 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 19:03:38,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 19:03:38,575 INFO L93 Difference]: Finished difference Result 218507 states and 1060421 transitions. [2021-08-21 19:03:38,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-21 19:03:38,576 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.111111111111111) internal successors, (28), 9 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-08-21 19:03:38,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 19:03:39,975 INFO L225 Difference]: With dead ends: 218507 [2021-08-21 19:03:39,975 INFO L226 Difference]: Without dead ends: 140699 [2021-08-21 19:03:39,975 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 28.9ms TimeCoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2021-08-21 19:03:40,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140699 states. [2021-08-21 19:03:43,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140699 to 97249. [2021-08-21 19:03:43,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97249 states, 92875 states have (on average 4.753798115746972) internal successors, (441509), 97248 states have internal predecessors, (441509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 19:03:44,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97249 states to 97249 states and 441509 transitions. [2021-08-21 19:03:44,587 INFO L78 Accepts]: Start accepts. Automaton has 97249 states and 441509 transitions. Word has length 28 [2021-08-21 19:03:44,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 19:03:44,587 INFO L470 AbstractCegarLoop]: Abstraction has 97249 states and 441509 transitions. [2021-08-21 19:03:44,587 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.111111111111111) internal successors, (28), 9 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 19:03:44,587 INFO L276 IsEmpty]: Start isEmpty. Operand 97249 states and 441509 transitions. [2021-08-21 19:03:44,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-08-21 19:03:44,636 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 19:03:44,636 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 19:03:44,636 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-08-21 19:03:44,637 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2021-08-21 19:03:44,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 19:03:44,637 INFO L82 PathProgramCache]: Analyzing trace with hash 1335188635, now seen corresponding path program 1 times [2021-08-21 19:03:44,637 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 19:03:44,637 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057302203] [2021-08-21 19:03:44,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 19:03:44,637 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 19:03:44,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 19:03:44,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 19:03:44,722 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 19:03:44,722 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057302203] [2021-08-21 19:03:44,723 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057302203] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 19:03:44,723 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 19:03:44,723 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-08-21 19:03:44,723 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908585372] [2021-08-21 19:03:44,723 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-08-21 19:03:44,723 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 19:03:44,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-08-21 19:03:44,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2021-08-21 19:03:44,724 INFO L87 Difference]: Start difference. First operand 97249 states and 441509 transitions. Second operand has 11 states, 10 states have (on average 3.1) internal successors, (31), 10 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 19:03:46,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 19:03:46,198 INFO L93 Difference]: Finished difference Result 71005 states and 370066 transitions. [2021-08-21 19:03:46,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-08-21 19:03:46,198 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.1) internal successors, (31), 10 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-08-21 19:03:46,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 19:03:46,199 INFO L225 Difference]: With dead ends: 71005 [2021-08-21 19:03:46,199 INFO L226 Difference]: Without dead ends: 0 [2021-08-21 19:03:46,199 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 39.3ms TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2021-08-21 19:03:46,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-08-21 19:03:46,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-08-21 19:03:46,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 19:03:46,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-08-21 19:03:46,199 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 31 [2021-08-21 19:03:46,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 19:03:46,199 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-21 19:03:46,200 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 3.1) internal successors, (31), 10 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 19:03:46,200 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-08-21 19:03:46,200 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-08-21 19:03:46,202 INFO L764 garLoopResultBuilder]: Registering result SAFE for location DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT [2021-08-21 19:03:46,204 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-08-21 19:03:46,204 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-08-21 19:03:46,204 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION [2021-08-21 19:03:46,204 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATION [2021-08-21 19:03:46,204 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4INUSE_VIOLATION [2021-08-21 19:03:46,204 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5INUSE_VIOLATION [2021-08-21 19:03:46,204 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6INUSE_VIOLATION [2021-08-21 19:03:46,205 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7INUSE_VIOLATION [2021-08-21 19:03:46,205 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8INUSE_VIOLATION [2021-08-21 19:03:46,205 INFO L764 garLoopResultBuilder]: Registering result SAFE for location DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT [2021-08-21 19:03:46,205 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-08-21 19:03:46,208 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-08-21 19:03:46,209 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-21 19:03:46,210 INFO L202 PluginConnector]: Adding new model bluetooth-customized08.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.08 07:03:46 BasicIcfg [2021-08-21 19:03:46,210 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-21 19:03:46,211 INFO L168 Benchmark]: Toolchain (without parser) took 119960.35 ms. Allocated memory was 203.4 MB in the beginning and 8.0 GB in the end (delta: 7.8 GB). Free memory was 183.1 MB in the beginning and 4.1 GB in the end (delta: -4.0 GB). Peak memory consumption was 3.8 GB. Max. memory is 8.0 GB. [2021-08-21 19:03:46,211 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.14 ms. Allocated memory is still 203.4 MB. Free memory is still 184.1 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-08-21 19:03:46,212 INFO L168 Benchmark]: Boogie Procedure Inliner took 28.57 ms. Allocated memory is still 203.4 MB. Free memory was 183.0 MB in the beginning and 181.2 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-08-21 19:03:46,212 INFO L168 Benchmark]: Boogie Preprocessor took 12.06 ms. Allocated memory is still 203.4 MB. Free memory was 181.2 MB in the beginning and 180.2 MB in the end (delta: 934.6 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-08-21 19:03:46,212 INFO L168 Benchmark]: RCFGBuilder took 232.59 ms. Allocated memory is still 203.4 MB. Free memory was 180.1 MB in the beginning and 165.6 MB in the end (delta: 14.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2021-08-21 19:03:46,213 INFO L168 Benchmark]: TraceAbstraction took 119681.98 ms. Allocated memory was 203.4 MB in the beginning and 8.0 GB in the end (delta: 7.8 GB). Free memory was 165.1 MB in the beginning and 4.1 GB in the end (delta: -4.0 GB). Peak memory consumption was 3.8 GB. Max. memory is 8.0 GB. [2021-08-21 19:03:46,214 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.14 ms. Allocated memory is still 203.4 MB. Free memory is still 184.1 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 28.57 ms. Allocated memory is still 203.4 MB. Free memory was 183.0 MB in the beginning and 181.2 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 12.06 ms. Allocated memory is still 203.4 MB. Free memory was 181.2 MB in the beginning and 180.2 MB in the end (delta: 934.6 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 232.59 ms. Allocated memory is still 203.4 MB. Free memory was 180.1 MB in the beginning and 165.6 MB in the end (delta: 14.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 119681.98 ms. Allocated memory was 203.4 MB in the beginning and 8.0 GB in the end (delta: 7.8 GB). Free memory was 165.1 MB in the beginning and 4.1 GB in the end (delta: -4.0 GB). Peak memory consumption was 3.8 GB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 2204386, positive: 1950251, positive conditional: 1950251, positive unconditional: 0, negative: 254135, negative conditional: 254135, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 2110356, positive: 1950251, positive conditional: 0, positive unconditional: 1950251, negative: 160105, negative conditional: 0, negative unconditional: 160105, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 729, positive: 686, positive conditional: 0, positive unconditional: 686, negative: 43, negative conditional: 0, negative unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 729, positive: 514, positive conditional: 0, positive unconditional: 514, negative: 215, negative conditional: 0, negative unconditional: 215, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 215, positive: 172, positive conditional: 0, positive unconditional: 172, negative: 43, negative conditional: 0, negative unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 410, positive: 318, positive conditional: 0, positive unconditional: 318, negative: 92, negative conditional: 0, negative unconditional: 92, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2110356, positive: 1949565, positive conditional: 0, positive unconditional: 1949565, negative: 160062, negative conditional: 0, negative unconditional: 160062, unknown: 729, unknown conditional: 0, unknown unconditional: 729] , Statistics on independence cache: Total cache size (in pairs): 729, Positive cache size: 686, Positive conditional cache size: 0, Positive unconditional cache size: 686, Negative cache size: 43, Negative conditional cache size: 0, Negative unconditional cache size: 43, Independence queries for same thread: 94030 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 41]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 13 procedures, 70 locations, 11 error locations. Started 1 CEGAR loops. OverallTime: 119593.2ms, OverallIterations: 9, TraceHistogramMax: 1, EmptinessCheckTime: 1940.2ms, AutomataDifference: 48741.7ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 10909.4ms, PartialOrderReductionTime: 10891.8ms, HoareTripleCheckerStatistics: 413 SDtfs, 671 SDslu, 758 SDs, 0 SdLazy, 1633 SolverSat, 700 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1361.7ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 82 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 163.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=151249occurred in iteration=1, InterpolantAutomatonStates: 63, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 57197.9ms AutomataMinimizationTime, 9 MinimizatonAttempts, 587814 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 23.9ms SsaConstructionTime, 61.7ms SatisfiabilityAnalysisTime, 567.1ms InterpolantComputationTime, 172 NumberOfCodeBlocks, 172 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 163 ConstructedInterpolants, 0 QuantifiedInterpolants, 471 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-08-21 19:03:46,239 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...